Just saw the following tweet from BuySellDomains asking for suggestions on researching a domain before registering and thought it might make a useful micropost. Here are seven different tools I would start with - would be interested in any other sites/suggestions.

1. Check archive.org to see what the site was previously used for
2. Check previous owners using DomainTools.com historical WHOIS
3. Search common spam domain/ip blacklists
http://www.dnsgoodies.com/
http://www.moensted.dk/spam/
http://www.au.sorbs.net/
4. Search past UDRP decisions
5. Try the following Google/Yahoo/Bing searches….
- “[domain]”
- “[domain] spam”
- “[domain] sucks”
6. Run a link popularity search on the domain to see who links to it.
7. Run a free trademark search on the domain - be sure to omit the extension.
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